Cultivator and seeder



(No Model.) 2 Sheets-Sheet 1.

J. s. HOWELL. OULTIVATOR AND SEEDER.

No. 410,768. Patented Sept. 10, 1889.

(No Model.) 2 Sheets-Sheet 2. J. S. HOWELL.

GULTIVATOR AND SEEDER. NO. 410,768. Patented Sept. 10, 1889.

I f L I i1 q /l 3 N. PETERS. Phnla-Lnhognphar. Wahingtcm n.0,

UNITED STATES PATENT OFFICE.

JOHN S. ROWELL, OF BEAVER DAM, VISUONSIN.

CULTIVATOR AND SEEDER.

SPECIFICATION forming part of Letters Patent No. 410,768, dated September 10, 1889. Application filed February 4:, 1889. Serial No. 298,589- (No model.)

T aZZ whom it may concern.-

Be it known that I, JOHN S. ROWELL, of Beaver Dam, in the county of Dodge and State of Wisconsin, have invented certain new and useful Improvements in Cultivators and Seeders; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification. a

This invention relates to improvements in devices for raising the drag-bars of seeders,

' drills, and cultivators; and it consists in the several novel features of construction herein described and illustrated, and more particularly pointed out in the appended claims.

In the drawings, Figure 1 is a rear View of a cultivator provided with my invention.

Fig. 2is a partial side View thereof. Fig. 3

tion.

In the drawings, A is the frame,B the dragbars, and C the drill or'cultivator teeth, all of which may be of the usual customary form and construction.

D is a vertically-movable bar or roller extending across the rear of the frame of the machine above the drag-bars. The bar D is supported at each end upon the lateral or crank arms D, which arms are suitably journaled at (1 upon the frame A.

E is the usual hand-lever, secured to the roller D at or near one end thereof in the usual manner for operating the latter. A locking-pawl e is movably secured to the lever E, and is provided with an operating arm or handle a. A spring 6 secured to the arm 6, presses beneath the handle a of the lever E and tends to keep the pawl e in engagement with the teeth 6 of the rack E. The rack E is semicircular, and is rigidly secured to the frame A. A portion of the teeth e are turned in one direction and a portion in the opposite direction, as more clearly shown in Figs. 2 and 4, for the purpose of securing or locking the spring-actuated pawl .c when the lever E is in the raised as well as in the lowered position.

Secured rigidly to the frame of the machine upon the side opposite to the lever E is a standard F, provided at its upper end with an inturned flange or arm f. The standard F is preferably inclined slightly to the rear, as shown in Fig. 3.

G is a screw-threaded hook bolt, the threaded end of which passes upwardly through the arm f 0f the standard F and is held in position by the nut g.

G is a spiral spring secured at its upper end to the hooked end of the bolt G and at its other end is secured to one end of a chain g. The other end of the chain g is secured to theunder side of the roller D.

- H are chains severally secured at one end to the roller D, and secured at their other endto the drag-bar B.

When the lever E is in'its uppermost position, as shown in Fig. 2, the rollerD is in' its lowermost position, as more clearly shown in Fig. 3, and the chain H is slackened and hangs loosely. The spring G is also extended by this movement of the lever, and would raise the roller D but for the fact that the latter is locked from movement by the engagement of the pawl e with the rack E.

To raise the bar D, the operator grasps the handle 6 and presses it against the spring 6 drawing the pawl e out of engagement with the teeth 6 He then moves thelever through the arc of about a quarter of a circle, or as far as desired. This action causes the roller D to turn on its pivots (Z to its upward position, tightens up the chainsH, and raises the drag-bars. This upward movement of the bar or roller D relieves the tension on the spring G and permits a contraction of the latter, thus drawing upward upon the chain g and assisting in raising the drag-bars. The tension of the spring G may be regulated by the nutg. I place the spring G upon the side of the machine opposite to the lever E,

so that the spring may act upon one end of the bar D when the said lever acts upon the roller. difficulty existing in long rollers on wide machines, particularly when said machines have weighted drag-bars or where the bars are held down by means of springs.

Turning now to another feature of my invention, as illustrated more particularly in Figs. 4 and 5, I provide means for raising the front ends of the drill-shoe to any desired point. In these figures, A A are depending brackets to support the draft-rod a. I I are spools or sleeves mounted on said rod (1, and each provided with two lugs i i. Iis adragbar that is secured at one end to the drillshoe near the top thereof, and at its other end is bolted to the -lug i of the sleeve I. Upon this bar I is secured a suitable weight J, which latter is adjustable upon the bar I by means of a set-screw j, which is screwed into a hub j of the weight J and bears upon the bar I. A draft-rod K is secured at one end to the front part or toe of the brake-shoe. The other end of said rod K is screw-threaded and passes through a suitable hole in the downwardly-depending lug i of the sleeve I. A nut 7.: secures the draft-rod K to the said lug.

To alter the inclination of the drill-shoe or to raise the front end thereof, as shown in Fig. 5, I simply tighten up the nut 7.: on the draftrod K, which will bow up the tooth-bar 1 into the curved position shown in Fig. 5 and raise the front end of the shoe to any desired point.

In the drawings I have shown two forms of drill-shoes; but it is obvious that both improvcments are applicable to either and, in fact, to other forms of shoes. Of course it will be understood that the strength of the spring G must be proportioned to the amount of weight to' be lifted and that the spring helps to raise the drag-bars where the heaviest lift comes, so that very wide machines or very heavy drag-bars can be raised and lowered with comparative ease. The ratchet E is secured rigidly to the frame, and is preferably integral with the bracket which supports one 5 end of the bar 1).

It will be observed that in my improvement the spring exerts its lifting-power and the chains II are wound up on the bar D when the latter is raised by the lever E. The chains II are unwound and slackened when said bar D is lowered. 13y attaching the ends of the chains II and g to the bar D in the manner illustrated, I obtain a greater draft and greater slackness than is due directly to the actual vertical movement of the bar D.

What I claim is l. The combination,with the vertically-movable bar I) and a lever and ratchetmechanism at or near one end thereof for raising and lowering said bar, of an upright at or near the opposite end of the bar and a coiled spring connected at one end to the upper end of the upright and at the other end to the bar, substantially as described.

2. The combination of the bar I), mounted on laterally-extended arms D, a lever for raisin gan d lowering the bar D, a spring arranged to exert a lifting force on said bar, and chains severally connecting the toothed beams with the bar I) and passing over the top of the bar to a point of attachment therewith, whereby when said bar D is depressed the chains are unrolled, and vice versa, and thus lengthened or shortened to an extent greater than is directly due to the actual vertical movement of the bar D, substantially as described.

The combination,with the toothed beam provided with an adjustable weight, of an adjustable spring arranged to lift the toothed beam, substantially as described. i

4. The combination, with a drill-shoe and draft-rod, of an adjustable draft-bar K and a vertically-flexible toothed beam I, substantially as described.

In testimony that I claim the foregoing as my invention I affix my signature in presence of two witnesses.

JOHN ROVVELL.

Witnesses:

LYMAN W. BARBER, H. W. KEYEs. 

